Alarm for incubators.



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FIG- l UNITED Squiresw PliTENT OFFICE.

-FAY TYNER PORTER, F MORRSTOWN, INDIANA.

` .ALARM YFon mcuBAToRs.

Specification oi Letters Patent.

Patented March 20. i906.

mamon and my genios. anni in. 261.465.

l will give an alarm when the iempcratnre a p'redeeranneri degree of reaches a danger-point above or below Ynortis a further object of my invention 97 provide an alarm adapted to be easily and quickly attached to incubatore now on the market. A lt. is a further object of'my invention to Eovide a device for incubatore which may accurately regulated to give an alarm when tem peratnre above or below normal is reached. l A

With these and otherobiccs in view the present invention consists in the combination and arrangement of parte as will be hereinater-more lu ly described, shown in the nccompanyingdrawn and particularly pointed out in the appem ed claim, it being understood that chan es in the form, proportion,- size, and minori etails may be made within the scope of the claim without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings, Figure l is a. view of an incubator with my device attariieri thereto. Fi 2 is a view, partly in awton, of the circult-breaker. Y Y

Referrin to the drawings, in which like numerals o reference indicate corresponding parte throughout the several views, l 1s an incubator provided with the nsual heatingdrum 2,la1np 3, and thermostat 4. Secured to Vthe nprer end of the thermostat. in a metaliic soc et 5, provided with a binglinggposl. 6, is en arm 7`, carrying a cap 8, located above flue Q of the iieatingnrum. Socket l0, made of insulating material, adjnstabl supports rorl il, eebacrew 12 being provi ed to hold g said rod in its adjusted position. At the upo por end of said rod ll a binding-post 13 is l formell. l`ross=pioro 14, carrying L-sbaped rods l5 and lll, is serum-rl to the upper part ol' rml l1.

l? inclralos nn olor-.tric bell, and IS a battery which supplies tlm current. to the bell.

Electric vonduolor 19 is connected al. one end with binding-post I3 and nt the other to one of lise binding-posts on hell 17. Conductor '.20 connerie tbv other binding-post wii one of the olurflrmlos ol battery 1S, the other electrodo boing rnnnoelml b v rondnetoi 2l to binding-post ll on sor-liet 5.

The operation of my device is as follows:

Yroicnity to arm 7. The rozl ll is raised or lilworefl until arm 7 is oqniilistant from the liorizontai piu-ts of arms l5 and i6, when the temperatur:- of thc incubator is normal. Sionlfl Hw temperature in the incubator increase, ilw tllormostnl'- 4 will bow toward the loft, thereby raising rap 8 and allowing part of tho boat to canape hrougli llue 9. Should the tcinporulfnrv inf-renne to o, dangcroint, arm 7 will contnrl. willi the horizontal portion of arm lli, thereby closing the circuit which rings boil l?, the arms 7, l, and 16 being rlorlrcally comico-tod with bindin 'Posts (i and i3, ns lioroinbelore lescril Y llle bell will continuo tering.: as lung as tle trmporalure within {be incubator is high enough to koop ann in contact with arm 16 tlgrongh tbornlosml. 4. Should tbe temperaloro fall below normal, tlm thermostat. 4 will Ibowtoward' iin-right muli-ap S will be lowered, thereby reraining mosnol' the heat in the incubator. Il, however, the. temperature ber-,omen low enough to allow arm 7 to content with the. horizontal "lortion of arm 153m: bell-circuit. will bc cloned and a (lngersignal given. The arms nml 16 being rotatable on orties-pieno@y 14 they can bc adgusted with relorrncyl o arm 7 so that. greater or less variation in tvmpemiure may be permiti/oil before en alarm is given.

Having: lnls l1-scribed my invention, what I claim as novel, and desire lo secure by Letters aeni., is-

combination with n damper-arm of en elec tric circuit., a signal located in seid circuit YSoulan l() is scoured lo the inonbatorzin close in n device of the character described', the i one of said arms lmingadnptcd to engage the FAY TYNER PORTER.

mul a circuit-closing device comprising o rod capable of vertical adjustment and provided with a plurality of L-shaped contact-arms,

VVftnessee R. L. MASON, U. S. JACKSON damper-arm when the latter is (le ressed, the other contactnm1 being adapte( to engage said damper-mm when the lutter is raised.. 

